USB2RCA - Wireless Digital Audio Link 



USB2RCA consists of an audio transmitter connected to a PC with a USB cable and an audio receiver. The audio receiver is connected further with a stereo RCA cable.

USB Transmitter can be connected to a PC that is running Windows®, Linux or Apple® operating systems. Transmitter is powered from the USB interface.

USB2RCA delivers high quality audio data wirelessly from the USB transmitter to the RCA receiver. The RCA receiver further has an output for an industry standard +12V trigger signal. This signal can optionally be used for switching on and off external equipment that is compatible with the +12V trigger signal (e.g. a power amplifier, an active speaker, etc.).

Both USB Transmitter and RCA Receiver have been built into a high quality aluminum casing and they can be easily attached to an iron surface (e.g. to the casing of a power amplifier) with an integrated magnet. Both units utilize an external antenna that guarantees excellent radio performance.


Inputs to the USB Transmitter:

  • 1 x mini-USB (Type B) connector for data transmission

Outputs from the RCA Receiver:

  • 2 x RCA jacks for analogue audio
  • 1 x 3,5 mm mono jack for +12V / 100 mA trigger signal

Power Supply to RCA Receiver:

  • 1 x DC-socket 2.1 x 5.5 mm

Technical Specification:

  • Sample Rates: 44.1 kHz and 48 kHz
  • Resolution: 16-bit
  • THD+N: <0.005 % (-3 dBFS)
  • Dynamic Range: >95 dB(A)
  • Analogue Output Level: +4dBu (~1,23 V RMS)
  • Frequency Response:
    • 10Hz - 23 kHz ±0.5 dB (48 kHz)
    • 10Hz - 20 kHz ±0.5 dB (44.1 kHz)
  • Transmission Delay:
    • 42.67 ms (48 kHz)
    • 46.44 ms (44.1 kHz)
  • RF Band: 2.4 GHz (ISM)
  • Operating Range: 100 m line of sight

Power Consumption:

  • USB Transmitter during active operation: <60 mA (5V – USB Power)
  • USB Transmitter during USB suspend mode: <1 mA (5V – USB Power)
  • RCA Receiver during active operation: <1.2 W (excluding the +12V trigger output load)
  • RCA Receiver in stand-by mode: <0.5 W


  • 1 x USB Transmitter
  • 1 x RCA Receiver
  • 1 x 12V Power Supply with a Europlug connector
  • 1 x USB Cable
  • 1 x RCA Stereo Cable
  • 1 x Getting Started Guide

Sales Package:

  • Size: 210 mm x 125 mm x 65 mm
  • Weight: 0.65 kg


  • Made in Finland

Pebble Audio Oy reserves the right to change this specification without prior notice.